Limb exercise machine

Abstract

A limb exercise machine includes a first transmission unit and a second transmission unit. A left-hand control member, as well as a right-foot control member, is connected to the first transmission unit. The left-hand control member and the right-foot control member are pulled by the first transmission unit to be moved synchronously. A right-hand control member, as well as a left-foot control member, is connected to the second transmission unit. The right-hand control member and the left-foot control member are pulled by the second transmission unit to be moved synchronously.

What is claimed is: 
     
       1. A limb exercise machine, characterized in comprising:
 a base, including a first step portion, a second step portion and a third step portion in a descending order of height, an upper left slide rail and an upper right slide rail being connected between the first step portion and the second step portion and extending obliquely, a lower left slide rail and a lower right slide rail being connected between the second step portion and the third step portion and extending obliquely; 
 a first transmission unit, one end of the first transmission unit being connected to a left-hand control member for manipulation of a user's left hand, another end of the first transmission unit being connected to a right-foot control member for manipulation of the user's right foot, the left-hand control member being slidably disposed on the upper left slide rail, the right-foot control member being slidably disposed on the lower right slide rail, the left-hand control member and the right-foot control member being pulled by the first transmission unit to be moved synchronously; 
 a second transmission unit, one end of the second transmission unit being connected to a right-hand control member for manipulation of the user's right hand, another end of the second transmission unit being connected to a left-foot control member for manipulation of the user's left foot, the right-hand control member being slidably disposed on the upper right slide rail, the left-foot control member being slidably disposed on the lower left slide rail, the right-hand control member and the left-foot control member being pulled by the second transmission unit to be moved synchronously; 
 a first pulley unit, including a first pull rope connected to the left-hand control member and the right-hand control member, the left-hand control member and the right-hand control member being pulled by the first pull rope to move synchronously; 
 a second pulley unit, including a second pull rope connected to the left-foot control member and the right-foot control member, the left-foot control member and the right-foot control member being pulled by the second pull rope to move synchronously; 
 a resistance device, connected to the left-foot control member and the right-foot control member to provide a resistance when moving. 
 
     
     
       2. The limb exercise machine as claimed in  claim 1 , wherein the first transmission unit includes an upper left link connected to the left-hand control member and a lower right link connected to the right-foot control member, the upper left link and the lower right lower link are fixedly connected by a first transverse rod; the second transmission unit includes an upper right link connected to the right-hand control member and a lower left link connected to the left-foot control member, the upper right link and the lower left link are fixedly connected by a second transverse rod. 
     
     
       3. The limb exercise machine as claimed in  claim 1 , wherein each of the left-hand control member, the right-hand control member, the left-foot control member and the right-foot control member is provided with a roller frame resting on the corresponding slide rail. 
     
     
       4. The limb exercise machine as claimed in  claim 1 , wherein the resistance device includes two pneumatic cylinder units connected to the left-foot control member and the right-foot control member, respectively. 
     
     
       5. The limb exercise machine as claimed in  claim 1 , wherein the resistance device includes four springs, two of the springs are connected to the left-foot control member, and the other two of the springs are connected to the right-foot control member.